从醋酸选择性生成乙烯的过程包括:用包含合适的加氢催化剂的第一催化剂组分,在升温条件下包含醋酸和氢的原料流,在第一反应区反应生成含有乙醇和醋酸乙酯的中间体混合物;然后中间体混 The process of selectively producing ethylene from acetic acid comprises reacting a first catalyst component comprising a suitable hydrogenation catalyst with a feedstream comprising acetic acid and hydrogen at elevated temperature to react in a first reaction zone to produce a mixture comprising ethanol and ethyl acetate Intermediate mixture; then the intermediate mixture